Photoprint-adjuster.



L. L. STEVENSON.

PHOTOPRINT ADJUSTER.

APPLICATION nuzo MAR. 2. 1917.

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W/TNE88E8 IN VEN 70R Patented Aug. 13, 1918.

1 .Z.Z. fifez/ezzsarz *2 f W 2 222 I i 4 fl y ATTORNEYS UNITED STATESPATENT OFFICE. I

' LEMUEL LESTER STEVENSON, OF EMPORIA, KANSAS.

PiIQTOPRINi'T-ADJUSTER,

Specification of Letters late nt. Patented Aug.;13, 1918 Applicationfi1e1 1March2, 1917. Serial No. 152,640.

To all whom it may concern:

. Be it known that L'LEMUEL LESTER'STE. VENSON, a citizen of the UnitedStates, and a resident of Emporia, in the county 'of Lyonand State ofKansas, have invented a new and Improved Photoprint-Adjuster, ofwhichthefollowing is a full, clear, and exact description. I a

My invention relates to the printing of photographs, and the main objectthereof is to provide means for instantly, automatically and accuratelyadjusting the print paper upon the negative, the adjusting means beingof relatively great thickness when free from pressure though of actuallyslight thickness when under pressure due to their peculiar and novelformation.

My invention is fully described in the following specification, of whichthe accompanying drawings form a part, in which like characters-refer tolike parts in each'offthe V views, and in which V w Figure 1 1s a Viewof a unask provlded with my 1nvent1on,arranged w1th1n a printing' framehaving its pressure-backremoved.

Fig. 2 is a section taken on the line 2+2 of Fig. 1;

Fig. 3 is a face view of one of my adjustinggl devices, in oneembodiment thereof; an

Fig. 4 is an edge View thereof looking away from the print paper.

Referring to Figs. 1 and 2, 5 represents an ordinary printing framewherein the negative 6' is placed and, when the print paper 7 isarranged in place, the pressureback of the frame is applied and theprint paper is held immovable on the negative during the exposure, amask 8 being illustrated for limiting the area of the negative to beprinted, and said mask is'provided with a number of my adjusters 9.

Each adjuster consists of a tongue of fairly stiif material flexed fromend to end so as to cause the inner edges 10 thereof to gradually riseabove the surface upon which the adjusters rest, as shown in Fig. 4.,whereby a gradually thickened shoulder is presented to the relativelythin print-paper, although the adjusters may be formed of material justas thin as the print paper, or even thinner, these inner edges 10 beingarranged along the lines to be occupied by the respective edges of theprint paper.

A twist to the tongues is imparted to the adjusters when beingmanufactured by reason of their flexing-along a line inclined withrespect to their transverse axes, as seen particularly in'Figs. 1 and 4,so that in their movement away from the plane of the mask, their inneredges 10 will recede from the lines to be occupied by the print paper.This shape is permanent although yielding to pressure, with the resultthat a plurality of relatively thickprint paper guides areprovided atthe desired points but which guides flatten under the pressure of theback-plate of the printing frame and, in their movement to flat form,the edges 10 of the tongues will shift slightly inan inward lateraldirection and thus tend to shift the print paper into desired positionif not already in such position.

The form shown in Figs. 3 and 4 is for use where the integral structureof mask 1 and tongues shown in Figs 1 and 2 is not desired, as thetongues 11 may have their bases 12 secured to the negative itself,-to amat, or to the glass in a printing frame or machine, as by an adhesive,solder, rivets or any other suitable means, and operate as eflicientlyas those shown in Figs. 1 and 2.

The adjusters may be cut from the mask as shown, or they may be mountedthereon, and I will also vend the devices in the simple form shown inFigs. 3 and 4, ready for attachment to any surface, this latter formpresenting a quick, positive and inexpensive device for the purposespecified.

While I have shown the adjusters of a preferred configuration, I do notdesire to limit myself thereto, nor to any special conformation, nor toany special material, and I reserve the right to make other changesthereover provided such changes come within the spirit of the inventionand within the scope of the appended claims.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A photo print adjuster, comprising a mask having a plurality of photoprint adjusting members, each consisting of a fiat resilient stripsecured at one end to the mask and flexed on a line transverselyinclined to its contact edge toward the free end of the tongue tonormally present an edge at its opposite free end gradually inclinedwith respect to the face of the mask, said inclined free end beingyieldable fiatwise against the mask under pressure.

2. In a photo print adjuster, the combination with a support, of atongue of resilient sheet material flexed on a lineatransverselyinclined to its contact edge toward the free end of the tongue topresent an edge to a print gradually inclined with respect to the faceof said sheet, said tongue yielding under pressure flush with the faceof said sheet.

3. A photo print adjuster, consisting of a sheet of material havingtongues, said tongues being flexed on lines transversely inclined totheir contact edges toward the free ends of the tongues to present edgesto a sheet gradually inclined with respect to the face of said sheet andyielding into flat form under pressure.

l. Aphoto print adjuster, consisting of .a mask of sheet material havingan opening and having tongues adjacent to said opening, saidtonguesbeing flexed .on lines transversely inclined to their contact edgestoward the free ends of the tongues, to present edges to a maskgraduallyinclined with respect to the faceof said mask and yield ing into flatform under pressure.

5. A photo print adjuster comprising a mask havinga plurality of photoprint adjusting members, each including a normally upstanding tongue offlat resilient material secured at one end to the mask andintermediately flexed on a line transversely inclined to its contactedge toward the free end of the' tongue, whereby to shift slightly in alateral direction when flattened under pressure.

6. A photo print adjuster comprising a mask having an opening and aseries of. resilient tongues adjacent said opening, each of said tongueshaving a portion thereof secured to said mask and being flexedtransversely so that the other part lies normally inclined to the faceof the mask and with one edge inclined with respect to the adjacent edgeof the opening, and is yieldable so that it lies parallel to said edgeof said opening when the tongue is pressed ,flatwise against the mask. I

7. A photo print adjuster tongue, comprising ,a plate provided at oneend with means for securing it to a support,-and bent intermediate ofits ends on a line transversely inclined to its contact edge toward theend of the tongue opposite that having the securing means.

8. A photo print adjustertongue, comprising a plate provided at one endwith van adhesive substance for securing it to a supportandbentintermediate of its ends on a line transversely inclined to itscontact edge toward the end of the tongue opposite that having theadhesive substance.

LEMUEL LESTER STEVENSON.

Copies of this'patent may be obtained for-five cents each, by addressingthe Commissioner of Patents,

. Washington, D. G.

